Fruit-canning device



-No' Mdel.)

J. J. ISLER. FRUIT GANNING DEVICE.

. N0.f477,8o5. PatentedJun 28, 1892.

.mungn l illlllllhu" ,1'1" EESES.

UNITED I` STATES 'PATENT OFFICE.

.Io'HN J. IsLER, 0E ELK RAPIDS, MICHIGAN.

F-RUIT-CANNING DEVICE.

SPECIFICATION forming part of Letters Patent No. 477,805, dated J une28, 1892.

Application tiled J' une 4, 1891. Serial No. 395,043. (No model.)

To a/ZZ whom it may concern:

Be it known that I, JOHN J. IsLER, a citizen 'of the United States,residing at Elk Rapids, in the county of Antrim and State of Michigan,have invented certain new and useful Improvements in Fruit-CanningDevices; and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the saine, refer- -ence beinghad to the accompanying drawings, and to the letters and figures ofreference marked thereon, which form a part of this specification.

This invention relates to an improved devicefor canning fruit and otherperishable products; and it consists in a certain construe# tion andarrangement of parts, as hereinafter fully set forth, the essentialfeatures of which being pointed out particularly in the claims.

The object of the invention is to produce a canning device that issimple and inexpensive, by means of which fruit and other articles maybe quickly and easily canned and in such manner as to be perfectlypreserved. This object is attained by the construction illustrated inthe accompanying drawings, in which-` Figure 1 is a side elevation of myimproved device, showing a can in position therein. Fig. 2 is a centralvertical section through Fig. al. Fig. 3 -is a vertical central sectionthrough the cylinder and plunger, showing the plunger drawn out.

Referring to the letters of reference, A designates a base which isrectangular in form and made, preferably, of wood.

B designates a series of vertical rods, the lower ends of which aresecured in the base A. The upper ends of said rods pass loosely throughthe corners of the rectangular cap C and are threaded to receive thethumb-nuts a, which bear upon the upper face of lsaid cap.

D designates a vertical tube or cylinder, the lower end of which extendsthrough the cap C and is secured therein.

E designates a plunger or piston that tightly fills the cylinder D andis adapted to reciprocate therein. Said plunger is provided with thelooped handle b, secured to its upper end, by means lof which it isactuated, and, with the central opening c, passing longitudinallytherethrough, which is closed at its by the valve c. f

F designatesl the Y can, which is provided with an annular groove 1l inits upper edge, in which is placed a ring of rubber o.

H designates the can-cover, the depending edge of which is adapted toenter the groove i in the top of the can and bear upon the rubber otherein, as clearly shown in Fig. 2.

In the top of the cover H is a central openingclosed by the valve fu,the stem of which extends through the cover and is attached to one endof the spring t, which is secured to the under face of the cover andserves to retain said valve on its seat.

In the operation of canning with this improved device the can is filledwith the fruit or article to be canned in the ordinary manner, the coverI-I is placed thereon and the can placed upon the base A under the capC, so that the valve o in said cover will register with the lower end ofthe cylinder D, a hat rubber ring u being interposed between the upperend cover and the underface of the cap C. Then by turning the thumb-nutsa the cap C is depressed, forcing the cover down upon the rubber o inthe groove t' in the top of the can and compressing the runner-ring ubetween said cover `and the under face of said cap, thereby making itair-tight between the can and cover and between the cover and cap aroundthe lower end of lthe cylinder D, when by drawing the plunger E upward,as shown in Fig. 3, the air will be entirely extracted from the can, thespring t yielding sufficiently to permit the valve n to rise to admit ofthe passage of the air therefrom. The can may then be removed byloosening the thumb-nuts a., the exhaustion of the air from said canbeing so complete that the cover remains held in place and the valve@closed by atmospheric pressure. The central opening c through theplunger, closed at the top by the valve c, permits the escape of the airfrom the cylinder when the plunger is forced downward therein, and thebottom of said cylinder is closed by the cover of the can when-the canis in position, as shown in Figs. 1 and 2.

Vhile I have shown the top of the can provided with a groove with a ringof rubber therein, into which the edge of the cover is forced, it isevident that the cover may be IOO annular recess in its upper edge, apacking- .f

lring in said recess, the cover having a depending iange that enters therecess in the upper edge of the can and bears upon said packing-ring,said cover also having an opening therein, and avalve to close saidopening, the stem of which extends downward therethrough, the springattach ed to the under face of said cover and engaging said valve-stem,substantially asset forth.

2. The combination of a jar or can with an Y elastic packing-ringthereon, and a cover fitted to the jar or can and ring thereon, adaptedpresence of two witnesses.

for preserving fruit and other purposes, the said cover having anopening therein for the extraction of air by pumping, and a Valve fittedto close the same, and a spring within the cover under the openingarranged to hold -ythe valve on its seat and to permit the valve to openfor the escape of air during its extraction and so as to allow thepressure of y,the external air to hold the valve closed after l'theoperation of canning or sea-ling is completed.

3. A jar or can having a cover with a hole therein and a valve to closethe same, and a y'spring under the hole arranged to hold the valve onits seat and to permit it to open for the extraction of airv and toclose it to prevent the re-entry of air when the operation of canning orsealing is completed.

lnftestimony whereof I affix my signature in JOI-IN J. ISLER. Witnesses.

J AMES P. BRAND,

J. J. MCLAUGHLIN.

